OCulink SFF-8611 4i to Female SFF-8612 4i Cable

The OCulink SFF-8611 4i to Female SFF-8612 4i Cable is a high-speed internal adapter cable designed for enterprise storage systems, data centers, and high-performance computing environments. This cable provides a critical interface conversion between the SFF-8611 (commonly used in host devices) and SFF-8612 (typically found on device endpoints) OCuLink connectors, both supporting 4-lane configurations. Engineered to deliver reliable signal integrity and high-speed data transfer, this solution enables seamless connectivity between host systems and storage devices or expansion cards, ensuring optimal performance in demanding applications.

Features

• Hybrid Interface Solution: Bridges the SFF-8611 and SFF-8612 OCuLink interfaces, allowing compatibility between host systems and device endpoints that use different physical connector types while maintaining the same electrical protocol.
• High-Speed Data Support: Supports PCIe 4.0 (16 GT/s) and SAS protocols, delivering bandwidth up to 64 Gbps for efficient data transfer in enterprise storage and high-performance computing applications.
• Superior Signal Integrity: Utilizes precision-engineered cables (e.g., 32 AWG) with multi-layer shielding to minimize signal degradation, crosstalk, and electromagnetic interference (EMI), ensuring stable performance at high data rates.
• Secure Connection System: Features robust connectors with positive latching mechanisms to prevent accidental disconnection in vibration-prone environments, enhancing reliability in data center and server deployments.
• Space-Optimized Design: The compact form factor of OCuLink connectors (SFF-8611 and SFF-8612) enables high-density configurations in servers and storage systems, optimizing space utilization.
• Protocol Flexibility: Compatible with both PCIe and SAS protocols, providing versatility for connecting NVMe SSDs, GPUs, RAID cards, and other PCIe-based devices.

Specifications

• Product Model: OCulink SFF-8611 4i to Female SFF-8612 4i Cable
• Connector A: SFF-8611 4i, Male, Straight
• Connector B: SFF-8612 4i, Female, Straight
• Connector Gender: Male to Female
• Cable Type: Adapter Cable (Straight to Straight)
• Cable Length: Standard options: 0.3m,0.5m(Custom lengths available)
• Data Rate Support: Up to 16 GT/s (PCIe 4.0), 24 Gbps (SAS-4)
• Supported Protocols: PCI Express (PCIe) 4.0, SAS 3.0/4.0, NVMe
• Wire Gauge: 32 AWG (high-frequency copper)
• Impedance: 85 ? differential impedance
• Shielding: Individual pair shielding with overall braid and foil shield
• Operating Temperature: -40°C to +85°C
• Durability: Minimum 250 mating cycles
• Contact Plating: Gold plating (e.g., Au 15'–30') for corrosion resistance and reliable connections

Applications

• Enterprise Storage Systems: Connecting host bus adapters (HBAs) or RAID controllers with SFF-8611 ports to SFF-8612-based storage devices or backplanes in servers and storage arrays.
• Data Center Infrastructure: Deploying in data centers where interface conversion between SFF-8611 and SFF-8612 is required for integrating modern host systems with legacy storage equipment.
• High-Performance Computing (HPC): Supporting HPC clusters and AI training servers that require high-speed, low-latency connections between compute nodes and storage or accelerator cards.
• External GPU and Accelerator Connectivity: Enabling external graphics cards (eGPUs) or AI accelerators to connect to systems with SFF-8611 interfaces, leveraging the pure PCIe protocol for minimal latency.
• System Integration and Testing: Facilitating prototyping, validation, and compatibility testing in development environments where adapter cables between OCuLink variants are essential.
• OEM Server Manufacturing: Used by server manufacturers to provide flexible connectivity solutions for custom configurations requiring SFF-8611 to SFF-8612 interoperability.